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Mercury—Spain’s “Liquid Silver” Bonanza
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HAVE you checked the temperature lately? If so, very possibly you consulted a mercury thermometer. Perhaps you wondered where the mercury came from. The source could well have been the Almadén mine in Spain, where the world’s richest mercury deposit is found. More than a quarter of the world’s mercury production comes from this seam.
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A Room with a View of Mars
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The launch in mid-July of the first inflatable space habitat marked another milestone in the commercialization of space, and a step closer to the dream of a space hotel to be realized next decade. This article will review the origins and development of the first space habitat, as well as plans for the first inflatable space hotel.
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TATP: Countering the Mother of Satan
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TATP - One of the most elusive explosives used in many deadly terrorist acts of the last few decades can now be identified by a recently developed, simple, and cost-effective pen-like device.
Although modern terrorism preceded 9/11, many see it as turning point in what may be considered the greatest threat to world security at the start of 21st century.
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jozeph Black
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Black, Joseph (b. April 16, 1728, Bodeaux, Fr.—d. Nov. 10, 1799, Edinburgh), chemist and physicist best known for the rediscovery of “fixed air” (carbon dioxide), the concept of latent heat, and the discovery of the bicarbonates.
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Angelo Secchi
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Secchi, Angelo (b. June 29, 1818, Reggio, Italy—d. Feb. 26, 1878, Rome), Jesuit priest and astrophysicist who made the first survey of the spectra of stars and suggested that stars be classified according to their spectral type. He entered the Society of Jesus in 1833 and became lecturer in physics and mathematics at the Jesuit College in Loreto, Italy, in 1839. He returned to Rome in 1844, where he completed his theological studies and lectured at the Collegio Romano.
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